Philadelphia, USA

Philadelphia (Philadelphia) is located in southeast Pennsylvania, the center of the Delaware Valley Metropolitan Area. The city starts from the Delaware River east and extends west to the Skunkil River west of the area of 334 ㎞ 2. Philadelphia is one of the oldest and most historic cities in the United States. In1790-1800, it was the capital of the United States before Washington was built, so it has a very important position in the history of the United States. Philadelphia is nicknamed the "City of Friendship", the largest city in Pennsylvania, only one river away from New Jersey; The fifth largest city in the United States, after New York, Los Angeles, Chicago and Houston; the Philadelphia Metropolitan Area is the fourth largest metropolitan area in the United States, after New York, Los Angeles and Chicago. Philadelphia is the largest economy city in Pennsylvania. In 2013, the economic output value of the Philadelphia economic circle (GDP) was US$4207.68 billion, ranking 7th in the United States, and the third economic city in the East after New York and Chicago. The port of Philadelphia is one of the largest estuaries in the world. There is a canal that communicates the Delaware River and Chesapeake Bay, with a free trade area of about 29 hectares, and six bridges across the Delaware River in the metropolitan area, connecting the towns across New Jersey. Philadelphia International Airport is located 12 kilometers southwest of the city center, with passenger and freight traffic at the forefront of the country. Philadelphia 30th Street Station is one of the railway hubs in the Northeast, and is the third busiest station in the American Railway System. In November 2015, Philadelphia was listed as a World Heritage City, the first American city to be listed as a World Heritage City. The taco at this Mexican restaurant in Philadelphia is delicious.